Ptychococcus lepidotus

Family: Arecaceae    棕櫚樹

通用名稱: Bow Palm

枝條抗寒性區: 9b     英國和美國的地帶地圖

鑑別:
Emergent palm bearing 10 or 11 leaves. Stem 6-19 m tall, 10-30 cm in diam. Leaf sheath 60-150 cm long, green with silvery indumentum; petiole 10-150 cm long; rachis 260-500 cm long; 44-46 pairs of segments, borne 4.9-7.8 cm apart, middle segment 60-85 cm long, 5-8 cm wide. Inflorescence 43-90 cm long; prophyll 42 or 43 cm long, 7 or 8 cm wide; peduncular bract ca. 39.5 cm long, ca. 5.5 cm wide; peduncle 10 16 cm long, 1.9-3.5 cm wide; rachillae 15-25 cm long, 1.8-2.9 mm in diam, brown lepidote, with 4-6 pistillate flowers per 5 cm. Staminate flower (bud before anthesis) 12.2-13.8 mm long, 6.5-8.4 mm in diam; sepals 4.0-5.9 mm long, 5.6-7.7 mm wide, densely brown lepidote on the abaxial surface; petals 10.2-11.9 mm long, 6.1-7.8 mm wide, brown lepidote on the abaxial surface; stamens 69-138, 6.8-10.0 mm long, creamy white; filaments 4.1-6.3 mm long; anthers 4.0-6.1 mm long, 0.6-0.8 mm wide, smooth; pistillode 7.9-11.8 mm long, 1.0-1.4 mm in diam at base. Pistillate flowers ca. 6.9 mm long, ca. 7.0 mm in diam; sepals ca. 4.1 mm long, ca. 5.0 mm wide; petals ca 4.3 mm long, ca. 3.4 mm wide; staminode not seen; pistil ca. 3.2 mm long, ca. 1.7 mm in widest diam. Fruit 39.4-49.2 mm long, 25.1 33.7 mm in diam; endocarp 39.1-39.7 mm long, 25.9 32.1mm in diam, endocarp wall 1.5-3.5 mm thick, brown with embedded black fibres; seed ca. 23.2 mm long, ca. 19.2 mm in diam.

一般資料:
Probable introduction

分佈:

最初是從, Papua New Guinea

Ptychococcus lepidotus is a palm of montane rainforest, at 760-1620 m in elevation. Ferrero (1996) gave 3000 m as the upper limit in elevation. Hay (1984) said that it was a common element of the lower montane rainforest dominated by Castanopsis (D. Don) Spach, in the vicinity of Bulolo. Its natural distribution corresponds to central Papua New Guinea, but it is widely cultivated and perhaps moved about by humans. The only known specimen from Indonesia was taken from a cultivated plant. It is not known to occur naturally in Indonesia.

地點: Papua New Guinea (-4.536999°N, 140.053711°E)

觀察
地圖可能並不代表完整的自然分佈。 (衛星標記,顯示觀察數據)。
Ptychococcus lepidotus 疊印圖像 ©2019 Trebrown - 擅自否重新分配。


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